37 lines
616 B
Go
37 lines
616 B
Go
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package ip
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import (
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"net"
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"strings"
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)
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// Internal get internal ip.
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func Internal() string {
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var (
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err error
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addrs []net.Addr
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inters []net.Interface
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)
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if inters, err = net.Interfaces(); err != nil {
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return ""
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}
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for _, inter := range inters {
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if !isUp(inter.Flags) {
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continue
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}
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if !strings.HasPrefix(inter.Name, "lo") {
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if addrs, err = inter.Addrs(); err != nil {
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continue
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}
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for _, addr := range addrs {
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if ipNet, ok := addr.(*net.IPNet); ok && !ipNet.IP.IsLoopback() {
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if ipNet.IP.To4() != nil {
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return ipNet.IP.String()
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}
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}
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}
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}
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}
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return ""
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}
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